Suspended furnace wall



Sept.'22, 1942.

w. H. MARcHAN-r SUSPENDED FURNACE WALL Filed Feb. 28, 1940 om 1\\ F FAQ* WML/AM H. MARCHA/VT Mdm# Patented Sept. 22, 1942 UNITE D STATES PATENT OFF! CE VSUSPENDED FURNACE WALL vWilliam H. Marchant, South Pasadena, Calif.

Application February 28, 1940, Serial No. 321,279

(Cl. l2-101) .3 Claims.

This invention relates to furnaces and the like and particularly pertains to a methodla'nd means of constructing a suspended furnace wall.

In the construction of structures subject to the action of high temperature, such as furnaces, stills and other heat treating apparatus, it is desirable to provide the heat enclosing chambers with walls of heat resisting materials and in certain instances heat insulating materials, said walls being of composite construction whereby the separate wall elements may be readily hung in position and heat sealed with relation .to each other in a manner to insure that the elements may be readily installed or removed separately, and to further insure that they may expand and contract independently without restriction from their hangings, thereby'preventing cracking of the walls Iand allowing themA to be assembled readily or dismantled. It is the principal object of the present invention to provide a suspended furnace wall structure capable of .use in ceilings or side walls, and which structure embodies the use of separate units of refractory material designed to cooperate with hanging and supporting elements whereby the units may be mounted separately and individually to form a composite wall or ceiling structure, the units being capable of independent movement with relation to each other and allowing for their independent expansion and contraction without placing a damaging strain upon the entire wall of'which they are a part.

The present invention contemplates the provision of separate refractory elements designed to be assembled to provide a relatively .continuous refractory face in a wall or ceiling structure, and which elements are tted with hanging or support members to hold them in .position individually and independently of each other whereby a composite wall is formed, the individual units of which are capable of expansion and contraction with relation to each other and their hangings or supports.

The invention is illustrated by way of example in the accompanying drawing, in which:

Figure 1 is a fragmentary view in elevation of an element of which the present invention is concerned, showing the manner in'which it is hung to provide Aa ceiling.

Fig. 2 is a fragmentary view in transverse section and elevation showing the `manner in which the ceiling elements and their hangers are associated.

Fig. 3 is a View showing another type of ceiling hanger.

Fig. '4 is a fragmentary view in side elevation showing the manner in which the side wall elements are supported to be held in position and to prevent tipping.

Fig. 5 is a fragmentary view showing another form of side wall hanger.

Referring more particularly to the drawing, I0 indicates a refractory unit which may be of the type indicated in my co-pendin-g application entitled Heat resisting unit and in which a shell II was provided formed of refractory material and filled with a mass of heat insulating material I2. In this particular tyfpe of structure a slab I3 was formed on the inner face of the shell and was -presented to the action of heat within a heat chamber constructed therefrom. The body of the shell Il isa box-like structure, the dimensions of which are less than those of the slab I3, thus insuring that when the contiguous edges of the slabs I3 are substantially together a clearance space I4 will occur entirely around the perimeter o'f the box-likeportion o'f the shell to receive a suitable material such `as a plastic, whereby 'the courses formed by the 4units I0 may be heat sealed. The spaces I4 also provide for the introduction of supporting brackets or hangers which interlock with the refractory units and are held in position by the plastic material filling the spaces I4. For ceilings it is preferable to use the refractory units I0 as indicated in Fig. 1 of the drawing. Here it will be seen that bars I5 extend horizontally, and as indicated in Fig. 2 are disposed with their greater width lying in a vertical plane. It will be understood, of course, that other types of structural elements may be used instead of the flat bar as here shown. The supporting bars I'5 carry hangers IB. These hangers are bent upon themselves to form a U- shaped crotch I'I which fits over thebars I5 and has outwardly and downwardly extending legs I8.

These legs terminate in prongs `I9 which project substantially at right angles to the plane of the hangers and extend into pockets 29 formed in the faces of the walls of the shell I I.

In Fig. 3 of the drawing another form of ceiling hanger is disclosed. This structure is substantially the same as that disclosed in Figs. -1 and 2 of the drawing except that the hangers I6' have legs I8 terminating in hooks I9. These engage ribs 20 along the sides of the shell I I.

While it is possible to assemble a side wall by the use of the means shown in Figs. 1, 2 and 3 of the drawing, it may be .preferable to use hangers of the type shown in Figs. 4 and 5 for the side wall elements. In the form of the invention disclosed in Fig. 4 the refractory units I0 are disposed with their slab portions I3 in .a vertical plane and the shell lportion II projecting horizontally and outwardly therefrom. The lower wall of the shell is formed with a transverse recess 2l to receive an angle hanger 22. This hanger has a horizontal leg 23 extending ibeneath the shell :portion II of the unit and terminating in an upturned rib 24 which seats within the recess 2|. A vertical leg of the hanger is indicated at 25 as extending up-wardly oyer the back face of the shell II and is bent upon itself to -form a hook 26.

A supporting bracket 2'I is secured to a structural upright 28 by such means as for example the bolt 29. This bracket has a vertical portion 30 conforming to the face of the upright 23 and has parallel horizontal legs 3| and 32 extending therefrom. The upper leg 32 terminates in a vertical portion 33 which lits within the hooked end 26 of the hanger 22. The lower leg 3| is formed with an eye receiving prong 34 of a tie bar 35. The tie bar 35 is tted at its opened end with a pro-ng 36 which is bent downwardly andinwardly toward the main body of the bar to seat within an obliquely disposed pocket 37 formed in the wall of the shell II. By this arrangement it will be seen that brackets and: hangers projecting from a vertical support will engage thecontiguous ends of the shells, and that when a mass of plastic material is placed within the space I4 the structure will remain in its assembled position.

In the form of the invention showny in Fig. of the drawing the hanger 25 engages the upper lip 4D of a bracket 4I. The back element 42 of the bracket is secured to the upright 28. A lower leg 42 of the bracket 4I is formed with a transverse slot 44. 'Ihis slot receives the T-shaped end 45 of a tie bar 46. The forward end of the toe bar 46 is formed with a hook 47 which lits within a pocket 43 occurring within the end of the element I0. If desired, the tie bar 46 may be formed with an end similar to that shown in Fig. 3 so that the unit may be embraced rather than hooked by the member 41.

It is to be understood that while the present invention is described as involving the use of the refractory unit III having the face slab I3 and the shell II that the invention is not limited to this type of unit or block but that the invention may be utilized with any type of wall or ceiling unit which is separately tied or carried by exteriorly disposed frame elements.

In the operation of the present invention a frame structure is erected which may embody the bars I5 and the uprights 28. The brackets 2I may then be secured in position and the hangers I6 disposed over the bars I5. The side wall refractory units II) are then placed in position by resting them upon the angle shaped hangers 22 and then tying them at their upper edges by the use of the tie bars 35. It will be seen that by this arrangement the side wall units are completely and directly supported from the uprights 28 and that the tie bars prevent the units from tipping. This insures that the individual units I!! will be held in position so that the outer surfaces cf their portions I3 will assume positions in align ment in a vertical plane to form a composite wall. The units I0 used in the ceiling are assembled with the hangers IB so that their prongs 2li seat within the pockets I9 at the opposite ends or sides of the units. The wall or ceiling may then be finished by filling a fire-resistant plastic material into the spaces I4. Attention is directed to the fact that with this particular type of refractory unit the joints between the shell portions II as represented by the spaces I4 will be protected from the direct action of the heat since the slabs I3 form a substantially continuous Wall surface and shield the spaces I4. In shielding the spaces I4 by the portions I3 the plastic material is protected from the action of heat, and the hangers which are used and which are imbedded within the plastic material are likewise protected. With a wall or ceiling constructed according to the teachings of the invention here shown it will be evident that the intermediate spaces I4 and the sealing material therein will act as expansion joints for the structure, and that the various hanging elements will permit individual expansion of the units without disturbing the relationship of the hangers with the units or the hangers with the exterior supports.

It will thus be seen that the method and means of constructing a suspended furnace wall as here shown provides for a relatively rigid exteriorly disposed frame structure, hangers carried thereby and separate refractory units interlocking with the hangers and individually supported by said frame structure, whereby a continuous furnace wall is provided of cheap and simple construction and of a character permitting expansion and contraction without cracking.

While I have shown the preferred construction of my suspended wall and preferred method of making the same, it is to be understood that various changes might be made in the steps of the procedure or the combination, construction and arrangement of parts by those skilled in the art without departing from the spirit of the invention as claimed.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A suspended wall structure comprising a rigid vertical upright, a bracket secured thereto and extending horizontally therefrom, an angle member attachably connected to the bracket and providing a ledge on which a wall unit may rest, a tie bar detachably connected to the bracket and at its outer end providing means interlocking with an underlying wall unit to hold the same in position.

2. A side wall hanger for heat-resisting blocks comprising a bracket member carried by a vertically extending fixed support and having upper and lower protuberances thereon, a hanger interlocking with the upper protuberance and being carried thereby to support the lower edge of a block, and a tie bar detachably interlocking with the lower portion of the bracket and engaging the contiguous face of a heat-resistant block.

3. A side wall hanger for heat resisting wall blocks, said blocks being arranged in courses vertically of the wall, vertical xed supports, bracket members fixed on said supports and extending therefrom at substantially the horizontal .planes of joints between the wall blocks, said bracket members each having an upper and lower protuberance, a separate hanger element carried by the upper protuberance and engaging the lower wall of a wall block whereby to support the same, and a separate tie bar detachably interlocking with the lower portion of the bracket and engaging the contiguous upper face of a wall block disposed beneath the wall block supported upon the hanger.

WILLIAM H. MARCHANT. 

